摘要
利用蚕丝加工过程中废弃的丝胶蛋白为填充物,采用干法成膜方式制备聚氨酯/丝胶蛋白复合膜,并考察丝胶含量对复合膜结构和性能的影响。结果表明:丝胶蛋白的加入,明显改善了聚氨酯薄膜的吸水和透湿性能,当其含量为30%时,聚氨酯薄膜的吸水率由初始的0.3%增大至19.8%,水蒸汽透过率则由原来的747g/(m2.d)增加至6 025g/(m2.d)。复合膜力学性能随着丝胶含量的增加虽有所降低,但仍具有满足医用敷料要求的较高韧性,在实际临床中具有广阔的应用前景。
The polyurethane/sericin（PU/SS） composite membranes are prepared by solvent evapora- tion method. The influence of sericin content on the structure and properties of PU/SS composite mem- branes were investigated. The results indicate that water absorption and water vapor transmission rate of the composite membranes siginifically improves due to the addition of sericin, which increases from 0. 3% to 19.8%, and from 747 g/m2/day to 6 025 g/m2/day, respectively. Although the mechanical properties decrease with the increase of sericin content, the excellent flexibility of composite membrane still can meet the requirement of wound dressing, which has a potential application in clinic.
出处
《浙江理工大学学报（自然科学版）》
2012年第4期469-473,共5页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
新世纪优秀人才支持计划项目(NCET070763)
关键词
聚氨酯
丝胶
复合膜
敷料
polyurethane
sericin
composite membrane
wound dressing
